package com.newblog2_0.common;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.MethodParameter;
import org.springframework.http.MediaType;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;

/**
 * Created with Intellij IDEA.
 * Description;
 * User:TQ02
 * Data:2023-12-16
 * Time:15:33
 * Text：保底返回处理
 */
@ControllerAdvice
public class ResponseAdvice implements ResponseBodyAdvice {

    @Autowired
    private ObjectMapper objectMapper;

    @Override
    public boolean supports(MethodParameter returnType, Class converterType) {
        return false;
    }

    @Override
    public Object beforeBodyWrite(Object body, MethodParameter returnType, MediaType selectedContentType, Class selectedConverterType, ServerHttpRequest request, ServerHttpResponse response) {
      if(body instanceof ResultAjax){
          return body;
      }
      if(body instanceof String){
          ResultAjax resultAjax=ResultAjax.succ(body);
          try{
              return objectMapper.writeValueAsString(resultAjax);
          } catch (JsonProcessingException e) {
              throw new RuntimeException(e);
          }
      }
       return  ResultAjax.succ(body);
    }
}
